February 2021 - Wine-bugs - list.winehq.org

[Bug 14697] New: wineserver: debug events can block completion of queued user APCs
by wine-bugs＠winehq.org 11 Feb '21

11 Feb '21

http://bugs.winehq.org/show_bug.cgi?id=14697 Summary: wineserver: debug events can block completion of queued user APCs Product: Wine Version: CVS/GIT Platform: PC OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: wineserver AssignedTo: wine-bugs(a)winehq.org ReportedBy: focht(a)gmx.net Hello, consider the following scenario... A debugger is attached to a debuggee. The debuggee has two threads. The debugger processes debug events and queries virtual memory info of remote process using VirtualQueryEx in its main loop. VirtualQueryEx -> NtQueryVirtualMemory -> enqueues APC_VIRTUAL_QUERY user APC for remote process (debuggee). The calling thread is blocked until the APC is completed. Following is the "good" case: tid=0009 (debugger process, calling thread, main debugger loop) tid=001a (debuggee thread 1) --- snip --- .. 0009: queue_apc( thread=(nil), process=0x54, call={APC_VIRTUAL_QUERY,addr=0x7fff0000} ) 001a: *wakeup* signaled=192 cookie=0x7ffdb7b4 0009: queue_apc() = 0 { handle=0x68, self=0 } 0009: select( flags=4, cookie=0x32d30c, signal=(nil), prev_apc=(nil), timeout=infinite, result={}, handles={0x68} ) 0009: select() = PENDING { apc_handle=(nil), timeout=infinite, call={APC_NONE} } 001a: select( flags=4, cookie=0x7ffdb7b4, signal=(nil), prev_apc=(nil), timeout=1c8f097946d2824 (-0.1787600), result={}, handles={} ) 001a: select() = USER_APC { apc_handle=0x68, timeout=1c8f097946d2824 (-0.1787600), call={APC_VIRTUAL_QUERY,addr=0x7fff0000} } 001a: select( flags=4, cookie=0x7ffdb7b4, signal=(nil), prev_apc=0x68, timeout=1c8f097946d2824 (-0.1792110), result={APC_VIRTUAL_QUERY,status=40000002,base=(nil),alloc_base=(nil),size=0,state=0,prot=0,alloc_prot=0,alloc_type=0}, handles={} ) 0009: *wakeup* signaled=0 cookie=0x32d30c 001a: select() = PENDING { apc_handle=(nil), timeout=1c8f097946d2824 (-0.1792110), call={APC_NONE} } 0009: get_apc_result( handle=0x68 ) 0009: get_apc_result() = 0 { result={APC_VIRTUAL_QUERY,status=40000002,base=(nil),alloc_base=(nil),size=0,state=0,prot=0,alloc_prot=0,alloc_type=0} } --- snip --- Now the interesting one, which ultimately leads to block of calling thread ... tid=0009 (debugger process, calling thread, main debugger loop) tid=001a (debuggee thread 1) tid=001b (debuggee thread 2) --- snip --- 0009: continue_debug_event( pid=0019, tid=001a, status=65538 ) 001a: *wakeup* signaled=258 cookie=0x7ffdb7b4 001b: *wakeup* signaled=258 cookie=0x7ffd77b4 0009: continue_debug_event() = 0 .. 0009: read_process_memory( handle=0x54, addr=0x7ffd8000 ) 001a: *signal* signal=19 0009: read_process_memory() = 0 { data= {} } 0009: read_process_memory( handle=0x54, addr=0x7ffd4000 ) 001a: *signal* signal=19 0009: read_process_memory() = 0 { data={} } 0009: queue_apc( thread=(nil), process=0x54, call={APC_VIRTUAL_QUERY,addr=(nil)} ) 001b: *wakeup* signaled=192 cookie=0x7ed44874 0009: queue_apc() = 0 { handle=0x68, self=0 } 001a: load_dll( handle=(nil), base=0x61090000, size=102400, dbg_offset=0, dbg_size=0, name=0x13e468, filename=L"C:\\windows\\system32\\msacm32.dll" ) 001a: *sent signal* signal=10 001b: *sent signal* signal=10 001a: load_dll() = 0 .. 0009: select( flags=4, cookie=0x32d30c, signal=(nil), prev_apc=(nil), timeout=infinite, result={}, handles={0x68} ) 0009: select() = PENDING { apc_handle=(nil), timeout=infinite, call={APC_NONE} } 001a: set_thread_context( handle=0xfffffffe, flags=00010007, suspend=1, context= {...}) 001a: set_thread_context() = 0 { self=1 } 001b: select( flags=4, cookie=0x7ed44874, signal=(nil), prev_apc=(nil), timeout=infinite, result={}, handles={0x4c} ) 001b: select() = USER_APC { apc_handle=0x68, timeout=infinite, call={APC_VIRTUAL_QUERY,addr=(nil)} } 001a: select( flags=4, cookie=0x7ffdb7b4, signal=(nil), prev_apc=(nil), timeout=0, result={}, handles={} ) 001a: select() = PENDING { apc_handle=(nil), timeout=1c8f09794c8b694 (+0.0000000), call={APC_NONE} } 001b: set_thread_context( handle=0xfffffffe, flags=00010007, suspend=1, context= {...}) 001b: set_thread_context() = 0 { self=1 } 001b: select( flags=4, cookie=0x7ffd77b4, signal=(nil), prev_apc=(nil), timeout=0, result={}, handles={} ) 001b: select() = PENDING { apc_handle=(nil), timeout=1c8f09794c90dc4 (+0.0000000), call={APC_NONE} } ... --- snip --- At this point, tid=0009 (debugger) is blocked forever. When the APC_VIRTUAL_QUERY user APC is queued, remote thread 001b is selected/destined to carry out the APC. After thread 001a and 001b woke up, a dynamic library is loaded from thread 001a which results in LOAD_DLL_DEBUG_EVENT dispatched. This initiates the suspension of all threads in the child process (SIGUSR1 is sent for 001a and 001b). Thread 001a is suspended first, 001b next. The suspension of 001b happens to a time when 001b is about to carry out the APC_VIRTUAL_QUERY. Meanwhile thread 0009 (calling process) is waiting for APC completion result forever because it's blocked by VirtualQueryEx in debugger loop, unable to receive and process any debug event. Regards -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.

2 21

[Bug 10249] New: Battlefield2/SafeDisc 4. x and Punkbuster services cause lockup: child processes debugging misconception
by wine-bugs＠winehq.org 11 Feb '21

11 Feb '21

http://bugs.winehq.org/show_bug.cgi?id=10249 Summary: Battlefield2/SafeDisc 4.x and Punkbuster services cause lockup: child processes debugging misconception Product: Wine Version: CVS/GIT Platform: PC OS/Version: Linux Status: UNCONFIRMED Severity: major Priority: P2 Component: wine-kernel AssignedTo: wine-bugs(a)winehq.org ReportedBy: focht(a)gmx.net Created an attachment (id=8876) --> (http://bugs.winehq.org/attachment.cgi?id=8876) WINEDEBUG=-all,+server,+tid,+loaddll,+seh wine ./BF2.exe +fullscreen 0 +szx 800 +szy 600 &>/tmp/debug_pipe Hello, while testing some PunkBuster stuff on popular games, I came across Battlefield 2 which employs SafeDisc 4.x It seems there is a problem with debuggers in chained child processes. Consider following scenario: --- snip process list --- pid threads parent executable (all id:s are in hex) 0000001b 1 00000008 'PnkBstrA.exe' 0000000c 2 00000008 'explorer.exe' 0000000a 2 00000008 '~e5.0001' 00000008 4 00000000 'BF2.exe' --- snip process list --- --- snip thread list --- process tid prio (all id:s are in hex) 0000001b 0000001c 0 0000000c 00000010 0 0000000d 0 0000000a 00000012 0 0000000b 0 00000008 0000001a 1 00000014 15 00000013 0 00000009 0 --- snip thread list --- "BF2.exe" = parent (game) "~e5.0001" = 1st child = SafeDisc 4.x process = "debugger" "PnkBstrA.exe" = 2nd child = PunkBuster Update Service The 1st child acts as debugger for the parent "BF2.exe" and receives all debug events (process, thread creation, dll load/unload...) There are lots of breakpoint events triggered from parent. This is part of SafeDisc 4.x and used for on-the-fly decryption of code sections (child decrypts code of father). When PunkBuster is initialized (loading of pbcl = client, pbag = agent), the following services should get started: PnkBstrA.exe, PnkBstrB.exe and finally the kmode driver PnkBstrK.exe The service process "PnkBstrA.exe" is started from main process "BF2.exe" (which is a debuggee itself). No debug flags (DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS) are specified in process creation flags. The debugger (child of parent, receives the process creation event) does not make debugger_attach() to the newly created child process. The child process seems to inherit the state of being a "debuggee": wine server -> new_process -> set_process_debugger( process, parent->debugger ); The parent got its process->debugger from debugger_attach(). This leads to a problem in child process startup code: "dlls/kernel32/process.c:start_process()" checks the PEB->BeingDebugged field and if set, a system breakpoint is encountered before the entry code is called. This breakpoint results in debug event - seen by debugger. Unfortunately this event is _not_ expected by debugger because it didn't expect another debuggee (child) to be created. Ok, long story short solution: If you debug a process by attaching to an already created process, you _must_ treat default debugging flags as if the process has been created with DEBUG_ONLY_THIS_PROCESS, meaning that all childs created by debuggee will NOT automagically become debuggees. Short and (hopefully) acceptable patch snippet: --- snip --- diff --git a/server/debugger.c b/server/debugger.c index a64a17a..c59f3a0 100644 --- a/server/debugger.c +++ b/server/debugger.c @@ -444,6 +444,7 @@ static int debugger_attach( struct process *process, struct thread *debugger ) resume_process( process ); return 0; } + process->create_flags |= DEBUG_ONLY_THIS_PROCESS; return 1; error: --- snip --- And yes, the patch (snippet) works as intended (tm) ;-) Attached for sake of completeness is relevant server trace. Search for "001c:trace:seh:raise_exception code=80000003 flags=0 addr=0x7b870ed8 " to the point where the entry system breakpoint is triggered. Regards -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching all bug changes.

2 17

[Bug 7635] OllyDbg 1.10 blanks on pause or attach
by WineHQ Bugzilla 11 Feb '21

11 Feb '21

https://bugs.winehq.org/show_bug.cgi?id=7635 Anastasius Focht <focht(a)gmx.net> changed: What |Removed |Added ---------------------------------------------------------------------------- URL|http://www.ollydbg.de/odbg1 |https://web.archive.org/web |10.zip |/20060127002930/http://www. | |ollydbg.de/odbg110.zip -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

1 0

[Bug 36012] New: OllyDbg 2.x debugger crashes with Wine builtin dbghelp
by wine-bugs＠winehq.org 11 Feb '21

11 Feb '21

https://bugs.winehq.org/show_bug.cgi?id=36012 Bug ID: 36012 Summary: OllyDbg 2.x debugger crashes with Wine builtin dbghelp Product: Wine Version: 1.7.16 Hardware: x86 OS: Linux Status: NEW Severity: normal Priority: P2 Component: dbghelp Assignee: wine-bugs(a)winehq.org Reporter: focht(a)gmx.net Hello folks, noticed this a while ago ... reporting now :) Ollydbg v2.x crashes for me with Wine builtin dbghelp. Interestingly the old Ollydbg v1.x doesn't crash with builtin. So I ended up with: Ollydbg 1.x debugging Ollydbg 2.x debugging Wine builtin 'notepad' :) Relevant part of tracelog (with some helper traces added by me): --- snip --- $ WINEDEBUG=+tid,+seh,+dbghelp,+dbghelp_symt wine ./ollydbg.exe >>log2.txt 2>&1 ... 0023:trace:dbghelp_symt:symt_new_function Adding global function L"kernel32<elf>":WCEL_InsertChar @7b83839a-7b8383c8 0023:trace:dbghelp_symt:symt_add_func_local Adding local symbol (L"kernel32<elf>":WCEL_InsertChar): ctx 0x20acd44 0023:trace:dbghelp_symt:symt_add_func_local Adding local symbol (L"kernel32<elf>":WCEL_InsertChar): c 0x20aaba0 0023:trace:dbghelp_symt:symt_add_func_local Adding local symbol (L"kernel32<elf>":WCEL_InsertChar): buffer 0x20ad7f0 ... 0023:trace:dbghelp_symt:symt_add_func_line (0x20ae608)WCEL_InsertChar:0 /home/focht/projects/wine/wine.repo/src/dlls/kernel32/editline.c:328 0023:trace:dbghelp_symt:symt_add_func_line (0x20ae608)WCEL_InsertChar:d /home/focht/projects/wine/wine.repo/src/dlls/kernel32/editline.c:331 0023:trace:dbghelp_symt:symt_add_func_line (0x20ae608)WCEL_InsertChar:15 /home/focht/projects/wine/wine.repo/src/dlls/kernel32/editline.c:332 0023:trace:dbghelp_symt:symt_add_func_line (0x20ae608)WCEL_InsertChar:1b /home/focht/projects/wine/wine.repo/src/dlls/kernel32/editline.c:333 0023:trace:dbghelp_symt:symt_add_func_line (0x20ae608)WCEL_InsertChar:2d /home/focht/projects/wine/wine.repo/src/dlls/kernel32/editline.c:334 ... 0023:trace:dbghelp_symt:symt_new_public Adding public symbol L"kernel32<elf>":WCEL_InsertChar @7b83839a ... 0023:trace:dbghelp:SymMatchStringW L"WCEL_InsertChar" L"*" N 0023:trace:dbghelp_symt:symt_fill_sym_info 0x20ae608 => WCEL_InsertChar 47 7b83839a 0023:trace:dbghelp:send_symbol se->cb=0x7d7f4fd1 se->sym_info=0x335fd8, se->sym_info->Size=47 se->user=0x33683c 0023:trace:dbghelp:sym_enumW sew->cb=0x4c90bc sew->sym_info=0x336848 size=47 sew->ctx=0x337098 0023:trace:dbghelp:SymSetContext Setting same frame {rtn=0 frm=0 stk=0} 0023:trace:dbghelp:symt_enum_locals_helper pair=0x3312fc match=0x7d800bd2 se=0x331398 func=0x20ae608 v=0x20ae63c vlen=4 0023:trace:dbghelp:symt_enum_locals_helper i=0 lsym=0x20ae66c, lsym->tag=0x7 0023:trace:dbghelp:SymMatchStringW L"ctx" L"*" Y 0023:trace:dbghelp_symt:symt_fill_sym_info 0x20ae66c => ctx 4 4 0023:trace:dbghelp:send_symbol se->cb=0x7d7f4fd1 se->sym_info=0x3313b8, se->sym_info->Size=4 se->user=0x331c1c 0023:trace:dbghelp:sym_enumW sew->cb=0x4c8f54 sew->sym_info=0x331c28 size=4 sew->ctx=0x33250c 0023:trace:dbghelp:symt_enum_locals_helper i=1 lsym=0x20ae6e4, lsym->tag=0x7 0023:trace:dbghelp:SymMatchStringW L"c" L"*" Y 0023:trace:dbghelp_symt:symt_fill_sym_info 0x20ae6e4 => c 2 ffffffe0 0023:trace:dbghelp:send_symbol se->cb=0x7d7f4fd1 se->sym_info=0x3313b8, se->sym_info->Size=2 se->user=0x331c1c 0023:trace:dbghelp:sym_enumW sew->cb=0x4c8f54 sew->sym_info=0x331c28 size=2 sew->ctx=0x33250c 0023:trace:seh:raise_exception code=c0000005 flags=0 addr=0x7d7f1208 ip=7d7f1208 tid=0023 0023:trace:seh:raise_exception info[0]=00000000 0023:trace:seh:raise_exception info[1]=00000064 0023:trace:seh:raise_exception eax=00000058 ebx=7d80d000 ecx=003311f0 edx=fffffd6f esi=00000040 edi=0033689c 0023:trace:seh:raise_exception ebp=00331248 esp=00331248 cs=0023 ds=002b es=002b fs=0063 gs=006b flags=00010202 0023:trace:seh:call_stack_handlers calling handler at 0x4e87c0 code=c0000005 flags=0 --- snip --- 'WCEL_InsertChar' seems to be the offender. Populating the symbol info for that function causes the crash in the debugger callback. http://source.winehq.org/git/wine.git/blob/fc38254fed5dbc07a2a61a2411bfaadc… --- snip --- 327 static void WCEL_InsertChar(WCEL_Context* ctx, WCHAR c) 328 { 329 WCHAR buffer[2]; 330 331 buffer[0] = c; 332 buffer[1] = 0; 333 WCEL_InsertString(ctx, buffer); 334 } --- snip --- During symbol evaluation of second function parameter 'c', the debugger syminfo callback corrupts parts of the caller stack hence the next for-loop iteration 'vector_length(v)' which ought to prepare 'buffer' local symbol info crashes. Source: http://source.winehq.org/git/wine.git/blob/d0665616255ae8b720e14e02072996b7… --- snip --- 909 static BOOL symt_enum_locals_helper(struct module_pair* pair, 910 const WCHAR* match, const struct sym_enum* se, 911 struct symt_function* func, const struct vector* v) 912 { 913 struct symt* lsym = NULL; 914 DWORD pc = pair->pcs->ctx_frame.InstructionOffset; 915 unsigned int i; 916 WCHAR* nameW; 917 BOOL ret; 918 919 for (i=0; i<vector_length(v); i++) 920 { 921 lsym = *(struct symt**)vector_at(v, i); 922 switch (lsym->tag) 923 { ... 933 case SymTagData: 934 nameW = symt_get_nameW(lsym); 935 ret = SymMatchStringW(nameW, match, 936 !(dbghelp_options & SYMOPT_CASE_INSENSITIVE)); 937 HeapFree(GetProcessHeap(), 0, nameW); 938 if (ret) 939 { 940 if (send_symbol(se, pair, func, lsym)) return FALSE; 941 } 942 break; ... 951 } 952 } 953 return TRUE; 954 } --- snip --- Dump of symbol info for second parameter 'c': --- snip --- Wine-dbg>p *se.sym_info {SizeOfStruct=0x58, TypeIndex=0x20a2b90, Reserved={0, 0}, info=0x20a66d4, Size=0x2, ModBase=0x7b810000, Flags=0xd0, Value=0, Address=0xffffffe0, Register=0x15, Scope=0, Tag=0x7, NameLen=0x1, MaxNameLen=0x7d0, Name=""} --- snip --- Flags: 0xD0 = SYMFLAG_LOCAL | SYMFLAG_PARAMETER | SYMFLAG_REGREL Register: 0x15 = CV_REG_ESP Disassembly of 'WCEL_InsertChar': --- snip --- $ objdump -d editline.o 00000cba <WCEL_InsertChar>: cba: 55 push %ebp cbb: 89 e5 mov %esp,%ebp cbd: 83 ec 28 sub $0x28,%esp cc0: 8b 45 0c mov 0xc(%ebp),%eax ; parameter 'c' cc3: 66 89 45 e4 mov %ax,-0x1c(%ebp) ; 'c' as stack variable cc7: 0f b7 45 e4 movzwl -0x1c(%ebp),%eax ccb: 66 89 45 f4 mov %ax,-0xc(%ebp) ; buffer[0] = c ccf: 66 c7 45 f6 00 00 movw $0x0,-0xa(%ebp) ; buffer[1] = 0 cd5: 8d 45 f4 lea -0xc(%ebp),%eax cd8: 89 44 24 04 mov %eax,0x4(%esp) cdc: 8b 45 08 mov 0x8(%ebp),%eax ; 'ctx' parameter passthru cdf: 89 04 24 mov %eax,(%esp) ce2: e8 30 fe ff ff call b17 <WCEL_InsertString> ce7: c9 leave ce8: c3 ret --- snip --- DWARF(2) symbol info: --- snip --- $ objdump -W editline.o <1><cf7>: Abbrev Number: 43 (DW_TAG_subprogram) <cf8> DW_AT_name : (indirect string, offset: 0x25b): WCEL_InsertChar <cfc> DW_AT_decl_file : 3 <cfd> DW_AT_decl_line : 327 <cff> DW_AT_prototyped : 1 <d00> DW_AT_low_pc : 0xcba <d04> DW_AT_high_pc : 0xce9 <d08> DW_AT_frame_base : 0x3b8 (location list) <d0c> DW_AT_sibling : <0xd3c> <2><d10>: Abbrev Number: 27 (DW_TAG_formal_parameter) <d11> DW_AT_name : ctx <d15> DW_AT_decl_file : 3 <d16> DW_AT_decl_line : 327 <d18> DW_AT_type : <0x847> <d1c> DW_AT_location : 2 byte block: 91 0 (DW_OP_fbreg: 0) <2><d1f>: Abbrev Number: 27 (DW_TAG_formal_parameter) <d20> DW_AT_name : c <d22> DW_AT_decl_file : 3 <d23> DW_AT_decl_line : 327 <d25> DW_AT_type : <0xf7> <d29> DW_AT_location : 2 byte block: 91 5c (DW_OP_fbreg: -36) <2><d2c>: Abbrev Number: 44 (DW_TAG_variable) <d2d> DW_AT_name : (indirect string, offset: 0x67a): buffer <d31> DW_AT_decl_file : 3 <d32> DW_AT_decl_line : 329 <d34> DW_AT_type : <0xa2a> <d38> DW_AT_location : 2 byte block: 91 6c (DW_OP_fbreg: -20) --- snip --- DW_AT_frame_base = 0x3b8 -> Location list for 0x3b8 --- snip --- $ objdump --dwarf=loc editline.o editline.o: file format elf32-i386 Contents of the .debug_loc section: ... 000003b8 00000cba 00000cbb (DW_OP_breg4 (esp): 4) 000003c4 00000cbb 00000cbd (DW_OP_breg4 (esp): 8) 000003d0 00000cbd 00000ce8 (DW_OP_breg5 (ebp): 8) 000003dc 00000ce8 00000ce9 (DW_OP_breg4 (esp): 4) 000003e8 <End of list> ... --- snip --- What might be the culprit here (see disassembly) is that 'c' is actually both: a function parameter ('DW_TAG_formal_parameter' -> 'cc0:') and a local variable ('cc3:'). The DWARF symbol info contains only one entry. Maybe that's something that confuses the debugger (function parameter handler combined with negative addressing mode which ought to apply for local variable). $ sha1sum odbg201.zip d41fe77a2801d38476f20468ab61ddce14c3abb8 odbg201.zip $ du -sh odbg201.zip 6.7M odbg201.zip $ wine --version wine-1.7.16-178-g7e874ae Regards -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

2 9

[Bug 7560] OllyDbg 1.1 fails to debug multithreaded apps
by WineHQ Bugzilla 11 Feb '21

11 Feb '21

1 0

[Bug 20230] New: GetThreadTimes() and the Actual and Pseudo Current Thread Handles
by wine-bugs＠winehq.org 11 Feb '21

11 Feb '21

http://bugs.winehq.org/show_bug.cgi?id=20230 Summary: GetThreadTimes() and the Actual and Pseudo Current Thread Handles Product: Wine Version: 1.1.30 Platform: PC URL: http://rh-software.com OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: ntdll AssignedTo: wine-bugs(a)winehq.org ReportedBy: ray(a)pobox.co.uk Some time ago I had an issue with SIV being unable to read the thread CPU time usage when using GetThreadTimes(). I tracked down to the following and then did a work-a-round. The "Current Thread" effectively has 2 current thread handles, these are the actual thread handle and the ~0 pseudo handle as returned by GetCurrentThread(). When a call is made to GetThreadTimes() this calls NtQueryInformationThread( ThreadTimes ) which contains the test "if (handle == GetCurrentThread())". As a result of this when GetThreadTimes() is called with the actual thread handle no data is returned. \WINE-1.1.30\dlls\ntdll\thread.c(1011): if (handle == GetCurrentThread()) I suspect the code should be changed to allow both the pseudo and actual thread handles to be used as a minimum, better still would, when possible, be to implement this function for any thread. While searching the source I also noticed: NTSTATUS WINAPI NtSetInformationThread( HANDLE handle, THREADINFOCLASS class, LPCVOID data, ULONG length ) { NTSTATUS status; switch(class) { case ThreadZeroTlsCell: if (handle == GetCurrentThread()) And suspect that code would benefit from a similar fix. -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.

2 18

[Bug 48407] New: OllyDbg 2.x segfaults the process after attaching to it
by WineHQ Bugzilla 11 Feb '21

11 Feb '21

https://bugs.winehq.org/show_bug.cgi?id=48407 Bug ID: 48407 Summary: OllyDbg 2.x segfaults the process after attaching to it Product: Wine Version: 5.0-rc3 Hardware: x86 URL: http://www.ollydbg.de/odbg201.zip OS: Linux Status: NEW Keywords: regression Severity: normal Priority: P2 Component: -unknown Assignee: wine-bugs(a)winehq.org Reporter: gabrielopcode(a)gmail.com CC: jacek(a)codeweavers.com Regression SHA1: 4ee629a3bafb1408a4e567908fef949837a39f10 Distribution: --- Since commit 4ee629a3bafb1408a4e567908fef949837a39f10, OllyDbg will hang after attaching to a process while the process itself will crash, and the message `Segmentation fault' is printed in the terminal where the process is launched from (not OllyDbg). How to reproduce after downloading OllyDbg (link provided in report) using a 32-bit prefix: 1) Launch a simple window app, such as `winemine' 2) From another terminal, launch OllyDbg in same prefix. Optionally: To speed up the attaching in OllyDbg, go to Options->Options->Analysis. In `Automatic Module Analysis' set it to `Off'. 3) In OllyDbg, go to File->Attach and select the process (winemine). Wait a few seconds until modules are processed, then the process will segfault and OllyDbg will hang. I tried to debug this to no avail, it's very unfamiliar territory for me, so it's a bit over my head. Reverting that commit on current wine git is not easy and I don't know how to do it, since the break_process and related functions have been removed from the wineserver at some point. So unfortunately I don't know where to start to fix this regression. -- Do not reply to this email, post in Bugzilla using the above URL to reply. You are receiving this mail because: You are watching all bug changes.

1 8

[Bug 23431] New: provide a stub for ntdll.NtSystemDebugControl() (Ollydbg 2.x)
by wine-bugs＠winehq.org 11 Feb '21

11 Feb '21

http://bugs.winehq.org/show_bug.cgi?id=23431 Summary: provide a stub for ntdll.NtSystemDebugControl() (Ollydbg 2.x) Product: Wine Version: 1.2-rc5 Platform: x86 URL: http://www.ollydbg.de/version2.html OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: ntdll AssignedTo: wine-bugs(a)winehq.org ReportedBy: focht(a)gmx.net Hello, a simple one... Ollydbg 2.x uses NtSystemDebugControl( DebugSysReadVirtual, ...) to read kernel memory (driver/OS address space) for informational purposes. Failure to do so doesn't cause harm. Although this approach doesn’t require any additional kernel driver (only the SeDebugPrivilege privilege on the running process) it's only useful for Windows XP systems. It's disallowed since Windows Vista/Windows 7. Not really useful in Wine but it obviously needs a stub. --- snip --- wine: Call from 0x7bc3d2d0 to unimplemented function ntdll.dll.NtSystemDebugControl, aborting First chance exception: unimplemented function ntdll.dll.NtSystemDebugControl called in 32-bit code (0x7bc3d2d0). ... =>0 0x7bc3d2d0 __wine_spec_unimplemented_stub+0x50(module="ntdll.dll", function="NtSystemDebugControl") [/opt/wine/wine-build/dlls/ntdll/../../../wine-git/dlls/ntdll/exception.c:268] in ntdll (0x00334434) 1 0x7bc1f895 __wine_stub_NtSystemDebugControl+0x28() in ntdll (0x00334434) 2 0x004467ae in ollydbg (+0x467ad) (0x00334460) 3 0x0044698b in ollydbg (+0x4698a) (0x00334484) --- snip --- Dump params and return STATUS_NOT_IMPLEMENTED to keep it running ;-) Regards -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.

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[Bug 27222] New: dbghelp.dll.SymEnumSourceFilesW needed (ollydbg2)
by wine-bugs＠winehq.org 11 Feb '21

11 Feb '21

http://bugs.winehq.org/show_bug.cgi?id=27222 Summary: dbghelp.dll.SymEnumSourceFilesW needed (ollydbg2) Product: Wine Version: 1.3.20 Platform: x86 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: dbghelp AssignedTo: wine-bugs(a)winehq.org ReportedBy: focht(a)gmx.net Hello, while attaching to a target using JIT (replacing winedbg), the following crash occurred: --- snip --- wine: Call from 0x7b838aa3 to unimplemented function dbghelp.dll.SymEnumSourceFilesW, aborting --- snip --- A stub keeps it from crashing (though it should not be hard to implement a wide character version). +tid,+dbghelp: --- snip --- ... fixme:dbghelp:SymEnumSourceFilesW 0x58 400000 (null) 0x4c06d8 0x400000: stub! fixme:dbghelp:SymEnumSourceFilesW 0x58 68350000 (null) 0x4c06d8 0x68350000: stub! fixme:dbghelp:SymEnumSourceFilesW 0x58 68490000 (null) 0x4c06d8 0x68490000: stub! fixme:dbghelp:SymEnumSourceFilesW 0x58 68530000 (null) 0x4c06d8 0x68530000: stub! fixme:dbghelp:SymEnumSourceFilesW 0x58 68590000 (null) 0x4c06d8 0x68590000: stub! fixme:dbghelp:SymEnumSourceFilesW 0x58 685b0000 (null) 0x4c06d8 0x685b0000: stub! fixme:dbghelp:SymEnumSourceFilesW 0x58 685f0000 (null) 0x4c06d8 0x685f0000: stub! ... --- snip --- Regards -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.

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[Bug 27802] New: ollydbg2 crashes on unimpl dbghelp.dll.SymEnumSourceLinesW stub
by wine-bugs＠winehq.org 11 Feb '21

11 Feb '21

http://bugs.winehq.org/show_bug.cgi?id=27802 Summary: ollydbg2 crashes on unimpl dbghelp.dll.SymEnumSourceLinesW stub Product: Wine Version: 1.3.24 Platform: x86 OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: dbghelp AssignedTo: wine-bugs(a)winehq.org ReportedBy: focht(a)gmx.net Hello, ollydbg2 crashes when trying to display source: --- snip --- ... wine: Call from 0x7b8384bb to unimplemented function dbghelp.dll.SymEnumSourceLinesW, aborting --- snip --- Stop at process main (dlls along with their debug syms loaded). "View" -> "Source Files" -> double click any source file $ wine --version wine-1.3.24-174-g4b4dd30 Regards -- Configure bugmail: http://bugs.winehq.org/userprefs.cgi?tab=email Do not reply to this email, post in Bugzilla using the above URL to reply. ------- You are receiving this mail because: ------- You are watching all bug changes.

2 7